Recent advances in technology introduce many new capabilities for several sectors. Among else, the continuous improvement and integration of new features in mobile devices, allow their interoperation and integration to a large number of environments; primarily the medical sector may suffice from their utilization in order to monitor efficiently the condition of patients and provide feedback to specialists, especially in cases of absence of a stable (wired) network infrastructure. Strict security requirements emerge due to the sensitivity of data being transmitted, often imposed by different international legislation processes. We present an architecture that allows secure dissemination of medical information in a secure manner in the absence of stable topologies and infrastructures built upon resource efficient devices. The presented architecture utilizes advanced management techniques, achieving secure and privacy-preserving transmission of sensitive data. A number of initial measurements show the effective operation of our architecture in presence of an adequately large number of users participating in the performance test-bed scenario.